Glass article
AssigneeAGC Inc.
InventorsTakanori Fukushi, Satoshi Kanasugi, Toru Ikeda
Life of this patent
Estimating the term…
Abstract
A glass article including a first main surface, a second main surface, and an end face, in which: the glass article includes an antiglare layer on the first main surface side; the antiglare layer has a glass transition point Tg of equal to or less than a glass transition point Tg0 of the glass article at a center portion in a cross section along a thickness direction; and the first main surface has a protrusion diameter y (μm) that satisfies the relation (1) with respect to a 60° specular gloss (gloss value) x (%) of the first main surface, y>−0.0245x+3.65 (1).
Claims15
A glass article comprising a first main surface, a second main surface, and an end face, wherein:
- the glass article comprises an antiglare layer on the first main surface side;
- the antiglare layer has a glass transition point Tg of equal to or less than a glass transition point Tg0 of the glass article at a center portion in a cross section along a thickness direction;
- and
- the first main surface has a protrusion diameter y (μm) that satisfies the relation (1) with respect to a 60° specular gloss (gloss value) x (%) of the first main surface,
- y>−0.0245x+3.65 (1)
- wherein the protrusion diameter y (μm) is determined by examining the first main surface with a laser microscope to obtain an XYZ data of a surface shape, obtaining an image from the XYZ data, subjecting the obtained image to a filtering with an image processing software to acquire a smoothed image, subtracting an XYZ data of the smoothed image from the XYZ data of the surface shape to obtain a profile, cutting the profile at a height of a bearing height+0.01 μm, converting a resultant protrusion section into a circle, and taking the diameter of the circle as the protrusion diameter y, and
- the 60° specular gloss (gloss value) x (%) is a value measured by the method described in JIS Z8741:1997 (ISO 2813:1994).
Dependencies are inferred from the claim text.